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Re: set up NAT (network address translation) on local server



It appears from your email that there was an editing error at the COMMIT or line after. Perhaps instead of a line-end on those lines it has spaces and wrapped them into one long line?
Could happen from copy and paste depending on circumstances.
Check that each rule is on its own line.

Antonio Olivares wrote:
How can I fix this?
I manually edited the file and I stopped service and now I get :

[root localhost ~]# gedit /etc/sysconfig/iptables &
[1] 7697 [root localhost ~]# service iptables stop
iptables: Flushing firewall rules:                         [  OK  ]
iptables: Setting chains to policy ACCEPT: nat filter      [  OK  ]
iptables: Unloading modules:                               [  OK  ]
[1]+ Done gedit /etc/sysconfig/iptables [root localhost ~]# service iptables restart
iptables: Flushing firewall rules:                         [  OK  ]
iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
iptables: Unloading modules:                               [  OK  ]
iptables: Applying firewall rules: Bad argument `COMMIT' Error occurred at line: 6 Try `iptables-restore -h' or 'iptables-restore --help' for more information. [FAILED] [root localhost ~]# cat /etc/sysconfig/iptables *nat :PREROUTING ACCEPT [1:233] :POSTROUTING ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A POSTROUTING -s 192.168.1.0/24 -o eth0 -j SNAT --to-source 10.154.19.210 COMMIT -A FORWARD -i eth1 -o eth0 -j ACCEPT -A FORWARD -i eth0 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT # manually added the changes 2008/11/20 # Firewall configuration written by system-config-securitylevel # Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
[root localhost ~]#

Thanks,

Antonio



--
  "A society grows great when old men plant trees whose shade they know
  they shall never sit in" - Greek Proverb


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